html,body,ul,li{
    margin: 0;
    padding: 0;
    list-style: none;
}
ul{
    overflow: hidden;
}
#toolbar li{
    float : left ;
    margin:10px;
}

#toolbar select{
    width:50px;
    height:22px;
}

#toolbar button.active{
    background-color: #aaa;
}

canvas{
    border:1px solid #ccc ;
    position: absolute ;
}